摘要
选用1,2-二苯氧基乙烷取代的氮氧双自由基(BNPhOEt)与稀土金属反应,得到了2例氮氧双自由基-稀土配合物[Ln(hfac)_(3)(BNPhOEt)]·C_(6)H_(14)(Ln=Tb(1)、Ho(2);hfac=六氟乙酰丙酮),其均为2p-4f一维链状结构。磁性研究表明,在配合物1和2中分别存在铁磁和反铁磁耦合。此外,对2个配合物的荧光光谱进行了研究分析。
The rational design of 2p-4f chains,which are made of 4f ions and nitronyl nitroxide biradical,has been presented.The reaction of Ln(hfac)_(3)·2H_(2)O(hfac=hexafluoroacetylacetonate)and nitronyl nitroxide biradical BNPhOEt(BNPhOEt=1,2-(bis-2,2′-(4,4,5,5-tetramethylimidazolyl-1-oxyl-3-oxide)phenoxy)ethane)afforded two isostructural chains of the formula[Ln(hfac)3(BNPhOEt)]·C_(6)H_(14)(Ln=Tb(1),Ho(2)).Direct-current magnetic suscep-tibility studies show ferromagnetic 4f-radical interaction in Tb complex while antiferromagnetic interaction in Ho derivative.In addition,the luminescence emission spectra of two complexes vary depending on lanthanide ion.CCDC:1906230,1;1906231,2.
作者
李弘道
翟丽军
宋永波
牛宇岚
LI Hong-Dao;ZHAI Li-Jun;SONG Yong-Bo;NIU Yu-Lan(Department of Chemistry and Chemical Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2021年第5期914-920,共7页
Chinese Journal of Inorganic Chemistry
基金
山西省科技创新项目(No.2020L0650)资助。
关键词
双自由基
稀土链
磁性
荧光
biradical
lanthanide chains
magnetic properties
luminescent behavior
